Edit: Feb 7, 2012 - Turns out the key parameter disappears from the GridView Edit link after a Sort as well, so it doesn't appear to be the Pager after all, but the problem persists... any ideas very welcome.
I have a Asp.Net Dynamic Data app. It uses the standard GridViewPager.aspx in Custom List.aspx which is marked up like this:
<asp:GridView ID="GridView1" runat="server" DataSourceID="GridDataSource" EnablePersistedSelection="True" CssClass="DDGridView" HeaderStyle-CssClass="th" RowStyle-CssClass="td" CellPadding="6" AllowSorting="True" AllowPaging="True" PageSize="3"
OnRowDataBound="GridView_OnRowDataBound" OnRowDeleting="GridView_OnRowDeleting">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:LoginView ID="LoginView1" runat="server">
<RoleGroups>
<asp:RoleGroup Roles="admin">
<ContentTemplate>
<asp:DynamicHyperLink ID="EditLink" runat="server" Action="Edit" Text="edit" />
<asp:LinkButton ID="LinkButton1" runat="server" CommandName="Delete" Text="delete" OnClientClick='return confirm("Are you sure you want to delete this item?");' />
</ContentTemplate>
</asp:RoleGroup>
</RoleGroups>
</asp:LoginView>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerStyle CssClass="DDFooter" />
<PagerTemplate>
<asp:GridViewPager runat="server" />
</PagerTemplate>
<EmptyDataTemplate>
There are currently no items in this table.
</EmptyDataTemplate>
</asp:GridView>
On page 1 of the List all is well. The Edit Link rendered includes ?key=xxxxx and the Edit form opens to the correct record.
Once we page off of Page 1 however, the Edit Link rendered on each row has no 'key' parameter and the Edit form always opens to the first row in the database.
I am at a loss to explain this or even where to look. There is no custom code attached to any event associated with the Edit DynamicHyperlink or the GridviewPager.
Has anyone experienced this or have any suggestions as to what might be the issue?
Found the answer here:
LinkButton CommandArgument is empty when it is inside LoginView in a GridView
Turns out good 'ol Microsoft forgot to wire LoginView to fire row-level databind events inside a GridView. No databind, no link parameters!
In deference to a positive attitude, I'll make no comment on the level of organization it takes to allow that out the door....
Related
I have a Gridview that has Enabled="False" (it contains many controls and in this circumstance i need them all to be disabled, easiest way is to set Enabled="False" on the Gridview).
The issue is I want to enable one LinkButton on each row within the disabled Gridview. I've tried finding the LinkButton on RowDataBound and enabling it there but it's still disabled. Can this be done? Can you have an enabled Button within a disabled GridView?
Simplified example of the code (real one is thousands of lines long)
<asp:GridView runat="server" enabled="false" AutoGenerateColumns="False">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton runat="server" id="button-to-be-enabled" text="press me"/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
I have a web page built in .NET where I am a very simple DataGrid with several fields. I would like to have one of those field have its data placed in a TextBox so the user can edit the default description. Is there an easy way to do this by default so the user doesn't have to click an edit button for the row?
Yes, disable AutoGenerateColumns and define your own fields:
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false">
<Columns>
<asp:TemplateField>
<HeaderTemplate></HeaderTemplate>
<ItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Eval("Data") %>'></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
Updating this data to the database might be more difficult though.
i have used grid view to display data. Now i need to edit the row. I have kept edit link button in template field of grid-view. Now when i click the edit button, i need to retrieve the data for particular row into the server controls, so that user can enter the data into it.
How can i do that?
let me know if any info required..
thanks!
UPDATED
See http://img18.imageshack.us/i/editform.jpg/
Now, when i click edit from below grid, the data in grid should come up in above form.
There is a different template available in Gridview and you have to use it properly. For example, if you want to edit something, the editTemplate is available for that.. look at the following sample:
<asp:GridView runat="server" ID="grd">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:Label runat="server" ID="lbl"></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox runat="server" ID="Textbox1"></asp:TextBox>
<asp:HiddenField runat="server" ID="hdf" />
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox runat="server" ID="Textbox1"></asp:TextBox>
<asp:HiddenField runat="server" ID="hdf" />
</InsertItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
have a look on these article
http://www.asp.net/data-access/tutorials/using-templatefields-in-the-gridview-control-cs
http://programming.top54u.com/post/ASP-Net-GridView-Edit-ItemTemplate-Mode.aspx
This is such a general question that you should really review how the GridView works in the first place.
Try reviewing the following example from MSDN regarding GridView editting;
http://msdn.microsoft.com/en-us/library/ms972948.aspx
I have a listview nested inside a gridview.
I'm trying to get paging working on the listview. I thought that it would display the paging controls, and just page through them normally.
It does display the controls, and limits the result set shown to the appropriate number of records (pageSize) but when I click on the paging controls the grid refreshes and nothing changes with the nested listview (it's still on the first page).
I've tried nesting the listview inside an updatepanel, but the behavior remains. The gridview itself is already in an updatepanel.
So this is the layout I've got:
<Gridview ID="gvApplications" DataSourceID="odsApplications" DataKeyNames="ID" AutoGenerateColumns="false">
<Columns>
<asp:TemplateField HeaderText="Functions">
<ItemTemplate>
<asp:ListView ID="lvFunctions" runat="server" DataSource='<%#Eval("ApplicationFunctions") %>'
DataKeyNames="ID">
<LayoutTemplate>
<asp:DataPager ID="dpFunctions" runat="server" PageSize="1" PagedControlID="lvFunctions">
<Fields>
<asp:NextPreviousPagerField />
</Fields>
</asp:DataPager>
<ul>
<li>
<span ID="itemPlaceholder" runat="server" />
</li>
</ul>
</LayoutTemplate>
<ItemTemplate>
<asp:Label ID="lblFunction" runat="server" Text='<%# Eval("ApplicationFunction.Name") %>' />
</ItemTemplate>
</asp:ListView>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</Gridview>
Ideas?
Honestly, I would consider using a master-details pattern here. There are a lot of code examples on this. For example:
Google: Master Details Examples with Child Objects
There are also scenarios where the details view (child objects in your case) would display on a separate page. Either way, by displaying the child objects in a separate details view, you avoid the coding and display issues that come with nesting.
Matt Berseth has some of the best code examples out there on this topic:
http://mattberseth.com/blog/gridview/
Listview / datapager combination do not work properly if the listview does not use a datasource control.
Try including a datasource control (objectdatasource could be applicable) in the template field.
I've been fighting this problem for many hours now and could really use some help :-)
This is the grid
<asp:GridView ID="annonceView" runat="server" AutoGenerateColumns="False" DataKeyNames="Id" DataSourceID="dataSourceAnnoncer">
<Columns>
<asp:BoundField DataField="Productname" HeaderText="Productname" />
<asp:buttonfield buttontype="Link" commandname="Delete" text="Delete"/>
<asp:TemplateField HeaderText="Administration">
<ItemTemplate>
<asp:LinkButton ID="lnkBtnDelete" runat="server" Text="Delete" CausesValidation="False" CommandName="Delete" OnClientClick="return confirm('Delete?')" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<asp:LinqDataSource ID="dataSourceAnnoncer" runat="server" ContextTypeName="Namespcae.TheContext"
EnableDelete="True" TableName="Annoncer">
</asp:LinqDataSource>
Clicking the buttonfield deletes the record just fine. Clicking the LinkButton doesn't work. I get a postback and the grid is shown as empty and no record is deleted. Seems like an empty databinding.
I have tried to create a custom OnClick, OnCommand event for the LinkButton, but neither are fired. The OnRowCommand isn't fired either.
I don't manually DataBind in the codebehind.
The problem wasn't with Asp.net but with Sitecore (A CMS), the simple solution is described here, http://www.cassidy.dk/blog/sitecore/2009/01/typesthatshouldnotbeexpanded.html.
I feel like Sitecore has stolen several hours of my life, well the problem is solved, so I'm happy :-)
Your code looks fine and should work. Make sure that you aren't using the lnkBtnDelete Id somewhere else. Do you have both the buttonField and the TemplateField present at the same time? What happens if you remove the buttonfield?